What is a military Julian date?

The US military writes dates as YDDD: the last digit of the year and the day of the year, so January 1, 2027 is 7001. It appears in supply requisition numbers and on ration packs. Choose YDDD in the editor to print it in every day.

How do I convert a Julian date to a regular date?

Type it into the converter at the top of this page, in any format, or find the number in the chart: each column is a month and each row a day of the month. For example 100 sits in the April column on day 10 in a common year, and day 9 in a leap year.

Is this the Julian calendar?

No. The Julian calendar is the older calendar some Orthodox churches still follow, now 13 days behind ours. A Julian date, as used in business, is simply the day of the year on today's (Gregorian) calendar.

Is a Julian date the same as the Julian Day astronomers use?

No. Astronomers count Julian Days continuously from the year 4713 BC, so today's Julian Day is a seven-digit number in the millions. This calendar prints the day of the year, which is what food, military and shipping codes use.

Can I print a Julian calendar that works for any year?

Yes. Choose Perpetual under Year: one page with a chart for common years and one for leap years, each day numbered 001 to 365 or 366.

Julian Date Calendar 2026 & 2027 (Printable PDF)

A Julian date is the day of the year: January 1 is 001 and December 31 is 365 (366 in a leap year). Print the classic one-page chart for 2027, 2026 or any year (perpetual), or 12 monthly pages with each day's number, and choose the code you write: DDD, YYDDD, military YDDD or YYYYDDD. You just need a Sync2Cal account to download it.

Day 001-366Day 001 to 365 (366 in leap years)
DDD, YYDDD, YDDD or YYYYDDD
Perpetual chart
Letter or A4PDF for Letter or A4 paper

Today's Julian date

Today, Sunday, October 4, 2026, is day 277 of the year.

DDD 277YYDDD 26277YDDD 6277YYYYDDD 2026277

Julian date converter

Date to Julian date

DDD 277YYDDD 26277YDDD 6277YYYYDDD 2026277

Julian date to date

Sunday, October 4, 2026 (day 277, read as YYDDD)

Customize your calendar

Beta

2027 · Julian date table

Output

Text size

Calendar details

Layout

Year

Date code

Jan 1, 2027 prints as 001.

Orientation

Federal holidays

Show observed days

Ink

Background

Upload your own photo

JPEG, PNG or WebP up to 10 MB. Used only for this calendar, never saved.

Orientation applies to Letter and A4. Phone and custom sizes keep their own shape.

Calendar preview

A look at the printed format.

Sample

2027 Julian Date Calendar

Sample: the first 12 days of January to June 2027
Day	Jan	Feb	Mar	Apr	May	Jun
1	001	032	060	091	121	152
2	002	033	061	092	122	153
3	003	034	062	093	123	154
4

2026 Julian date calendar

Every day of 2026 with its Julian date, from 001 on January 1 to 365 on December 31. Find the month's column and the day's row. Weekends are shaded and US federal holidays are in red, as on the printed chart.

Swipe sideways to see every month.

2026 Julian dates: the day of the year for every date
Day	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1	001	032	060	091	121	152	182	213	244	274	305	335

2027 Julian date calendar

Every day of 2027 with its Julian date, from 001 on January 1 to 365 on December 31. Find the month's column and the day's row. Weekends are shaded and US federal holidays are in red, as on the printed chart.

Swipe sideways to see every month.

2027 Julian dates: the day of the year for every date
Day	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1	001	032	060	091	121	152	182	213	244	274	305	335

What is a Julian date?

A Julian date is the number of the day within its year, counted from 001 on January 1. Food and drink plants stamp it on lot codes, the US military writes it on supply documents, and warehouses and older computer systems store dates this way because the gap between two days is a subtraction. The day number is written a few ways, depending on who uses it. Pick the one you need in the editor and it prints in every day.

Code	Jan 1, 2027	Used for
DDD	001	the day of the year on its own
YYDDD	27001	food lot codes, pharma and batch codes
YDDD	7001	military (DoD) document dates and some pack codes
YYYYDDD	2027001	warehouse, shipping and mainframe dates

Questions about Julian dates

What is today's Julian date?

Today, October 4, 2026, is day 277 of the year: 26277 as YYDDD, 6277 as military YDDD and 2026277 as YYYYDDD (US Eastern time). The line at the top of this page shows it for your own clock.

How many days are in 2027?

2027 has 365 days, so its Julian dates run from 001 to 365. 2028 is the next leap year: February 29 is day 060 and December 31 is day 366.

How do I read a Julian date code on food?

Many food and drink makers print the production date as a Julian code. In YYDDD the first two digits are the year and the last three the day, so 27045 is day 045 of 2027, February 14. Some use YDDD, with only the last digit of the year (7045). It is usually the date the food was packed, not an expiry date.

See every printable calendar and schedule